A Friends of Strathaven Castle Group was set up in February 2023 to promote the repair and renewed access to the towns major landmark.

Strathaven Castle is built on a rocky, partly artificial mound, and was defended to the east, south and west by the steep banks of the Powmillon Burn.

The castle comprised a three-storey rectangular block, around 11.2m by 21.2m,[3] with a four-storey round tower at the north-west corner, and a small projecting wing at the south-east.

Modern concrete infill has obscured much of the original detail, although a remnant of 15th-century-style corbelling remains visible.

[4] The round tower has several wide gunloops, and was probably added in the 16th century, and incorporates an improbably low entrance.